Installs Unity3d in docker for running headless builds on Ubuntu 18.04. Unity3d inside docker will be able to target Linux and Windows. Install docker-compose to use docker command easier.
To run Unity first you need to login with your account.
Activation information will be stored outside of container in ~/.cache/docker-unity3d folder.
Run Unity3d:
docker-compose run unity3d-activate
Now login with your e-mail and password. Then close the window.
First export following environment variables:
export UID
export BUILD_NAME=YourProjectName
export BUILD_PROJECT=/absolute/path/to/your/project
Exporting UID is important to make docker run container as your user. This means any files Unity
will modify (for example, under Library) will written under you user, not as root.
BUILD_NAME will be used for folder & binary name.
BUILD_PROJECT should be absolute path to your Unity project.
To build 64-bit Linux binary execute following:
docker-compose run unity3d-build-linux64
To build 64-bit Windows binary execute following:
docker-compose run unity3d-build-windows64
The output will be zip file in in project folder.
To do the build by executing custom C# method run following:
docker-compose run unity3d-build -buildTarget Linux64 -executeMethod YouCustom.BuildMethod
Adjust value of -buildTarget to Windows64 if building Windows binary.
Make sure your custom build places output in /tmp/${BUILD_NAME} folder.